Integration of surface acoustic wave (SAW) devices with nanostructures has gained interest in the development of sensors with high sensitivity. To better design nanostructure integrated SAW devices, it is essential to model three... COMSOL Conference 2006, Boston Y.L. Rao1 , and G. Zhang1-3 1 Micro/Nano Bioengineering Laboratory, Department of Biological and Agricultural Engineering, The University of Georgia 2 Nanoscale Science and Engineering Center, The University of Georgia 3 Faculty of Engineering, The University of Georgia
The aim of this work was to simulate the electro-thermal behavior of a micro-hotplate used as a gas sensor, in order to compare the obtained results with a real structure. The structure has been designed in 3D and a stationary and a... COMSOL Conference 2012, Milan N. Dufour1 , C. Wartelle2 , P. Menini1 1 LAAS-CNRS, Toulouse, France 2 Renault, Guyancourt, France
Computational synthesis methods, used to help designers in the creative phase of the design process, often find an obstacle to their development in the difficulty of finding efficient simulation packages to integrate into the automated... COMSOL Conference 2007, Grenoble F. Bolognini1, A. A. Seshia1, and K. Shea2 1Engineering Department, University of Cambridge, Cambridge, UK 2Technical University of Munich, Munich, Germany
This work describes the design methodology and development of piezoelectric transducers for applications in fluids with COMSOL_Multiphysics. In these linear models for the acoustic-structure interaction approximate numerical solutions... COMSOL Conference 2012, Milan V.M. Acosta1 , E. Riera1 , G. Rodriguez1 , A. Pinto1 , A. Cardoni2 , J.A. Gallego-Juárez1 1 Power Ultrasonics Group, CSIC, Serrano, Madrid, Spain 2 Pusonics, Arganda del Rey, Madrid, Spain
In order to transmit energy in one direction, sonar flextensional transducers are combined into arrays of elements that are spaced a 1/4 wavelength apart. The directionality (front-to-back pressure ratio) is a modest of 6 dB. A single... COMSOL Conference 2010, Boston S.C. Butler Naval Undersea Warfare Center, Newport, RI, USA
This work presents a different use of COMSOL as an integrated component of a computational tool framework used to automate designs creation. CNS-Burst is a computational synthesis method that has been implemented with the aim of... COMSOL Conference 2011, Stuttgart F. Bolognini University of Cambridge Cambridge, UK
Electrowetting occurs with the electrical control of the surface wetting properties through the application of an electric potential. A simulation of electrowetting driven droplet dynamics is performed using the COMSOL Multiphysics... COMSOL Conference 2008, Hannover B. Cahill1 , A. Giannitsis1 , G. Gastrock1 , M. Min1,2 , and D. Beckmann1 1 Institut für Bioprozess- und Analysenmesstechnik e.V., Heiligenstadt, Germany 2 Department of Electronics, Tallinn University of Technology, Tallinn, Estonia
Monitoring of indoor CO2 concentration is of particular interest to detect room occupancy in order to optimize power consumptions of building. One approach to monitor the indoor CO2 concentration is to use optical detection using specific... COMSOL Conference 2012, Milan S. Gidon1 , M. Brun1 , S. Nicoletti1 , P. Barritault1 1 Commissariat Energie Atomique, LETI, Minatec Campus, Grenoble, France
In this paper, a novel design of a fingerprint sensor composed of a 2D array of piezo resistive micro beams has been presented. When the user presses the sensor array with a finger, the ridges and valleys that compose the fingerprint... COMSOL Conference 2012, Bangalore A. Ganesan1 , S. Swaminathan1 , N. N. Sharma2 1 BITS, Pilani - Dubai, U.A.E. 2 Mechanical Engineering Department, Birla Institute of Technology & Science, Pilani, Rajasthan, India
In this paper, we present a FEM model of a mixing MEMS μTAS device. A quasistatic magnetic field, produced by sequentially switched DC currents advected through conductors embedded in the device substrate beneath the flow channel, is... COMSOL Conference 2007, Grenoble A. M. Morega1, J. C. Ordonez2, and M. Morega1 1Politehnica University of Bucharest, Bucharest, Romania 2Florida State University, Tallahassee, FL, USA
The MEMS microphone is also called microphone chip or silicon microphone. The pressure sensitive diaphragm is etched directly into a silicon chip by MEMS techniques and is usually accompanied with integrated preamplifier. Most MEMS... COMSOL Conference 2011, Bangalore S. L. Pinjare, V. S. Nagaraj, S. N. Savitha, S. Kesari, M. S. Sagar, and K. R. Roshan Nitte Meenakshi Institute of Technology
In this paper, a methodology to simulate the electric behavior of spiral inductances is presented and discussed. All the methodology is built with the COMSOL software used with the Matlab scripting interface and then allows performing... COMSOL Conference 2010, Paris S. Druart, D. Flandre, and L.A. Francis Université catholique de Louvain - ICTEAM, Louvain-la-Neuve, Belgium
We have developed a novel, multilayered microfluidic chamber that enables the realtime quantitative study of chemotaxis on virtually all types of motile cells. In this paper, we present a FEMLAB modeling study of the 3D chamber... COMSOL Conference 2005, Boston Koser, H., Kaya, T., Mao, L. Department of Electrical Engineering, Yale University, New Haven, CT
Electric Field Assisted Capillarity (EFAC) is a novel technique for the fabrication of hollow polymer microstructures. It has advantages over current methods as it is a single step process. Hollow microstructures have many uses in... COMSOL Conference 2012, Milan C. Tonry1 , M. K. Patel1 , C. Bailey1 , M. P.Y. Desmuliez2 , W. Yu3 1 Computational Mechanics and Reliability Group (CMRG), School of Computing and Mathematical Sciences, University of Greenwich, London, United Kingdom 2 Microsystems Engineering Centre (MISCEC, School of Engineering & Physical Sciences, Heriot Watt University, Earl Mountbatten Building, Edinburgh, United Kingdom 3 State Key Laboratory of Applied Optics, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun, Jilin, China
Dielectrophoresis (DEP) is a method for cell manipulation without physical contact in lab-on-chip devices, since it exploits the dielectric properties of cells suspended in a microfluidic sample, under the action of locally generated... COMSOL Conference 2009, Milan S. Burgarella1 , B. Dell’Anna2 , V. Perna1 , G. Zarola2 , and S. Merlo2 1 STMicroelectronics, Agrate Brianza, MI, Italy 2 Dipartimento di Elettronica, Università degli Studi di Pavia, Pavia, Italy
This paper presents an Analog to Digital Microfluidic Converter (ADMC) using passive valves and enabling the conversion of a continuous liquid flow into droplets for Electro-Wetting On Dielectric (EWOD) actuation. Valves calibration,... COMSOL Conference 2009, Milan R. Dufour 1 , C. Wu1 , F. Bendriaa1 , V. Thomy1 , and V. Senez1 1 BioMEMS Group, IEMN, University of Lille Nord de France, Villeneuve d’Ascq, France
Micro-grippers find applications in micro-robotics, microsurgery, micro-fluidics, micro-relays, assembling and miniature medical instrumentation. Actuation principle involved may be electrothermal, electrostatic, piezoelectric, shape... COMSOL Conference 2012, Bangalore T. Pahwa1 , S. Gupta1 , V. Bansal1 , R. Narwal1 , B. Prasad1 , D. Kumar1 1 Electronic Science Department, Kurukshetra University, Kurukshetra, India
Electroosmotic flow of power-law fluids in a slit channel(1D) is analyzed. The governing equations are the Poisson–Boltzmann equation, the Cauchy momentum equation, Generalized Smoluchowski equation and the continuity equation are used... COMSOL Conference 2012, Bangalore K. SriNithin1 1 IIT Kharagpur, Kharagpur, West Bengal, India
Operation of a modified type microthrottle (MT) pump is analyzed by numerical simulation. Conventional MT pumps have disk type piezoelectric membranes while the analyzed type has a membrane of a rectangular shape. This could be... COMSOL Conference 2012, Milan B. Pe?ar1 , D. Križaj1 , D. Vrta?nik1 , D. Resnik1 , U. Aljan?i?1 , M. Možek1 , T. Dolžan1 , A. Slavko1 1 Faculty of Electrical Engineering, UNI of Ljubljana, Ljubljana, Slovenia
This presentation considers the analysis of electroosmotic flow in porous media. Electroosmotic flow is a flow that occurs in microchannels, and is driven by the effect of an electric double layer at the solid-fluid interface.... COMSOL Conference 2006, Taipei Jiunn-Chi Wu National Central University
